Photosynthesis produces glucose as its primary product, but this glucose is not transported directly in the phloem. Instead, it is converted into sucrose for transport.

Here's why:

* Glucose is a reactive molecule: Its high reactivity makes it difficult to transport efficiently and can lead to damage within the phloem.

* Sucrose is a stable molecule: It is a disaccharide (two sugar units linked together) and is much more stable than glucose. This allows for efficient transport without causing damage.

So, the biochemical form in which photosynthesis moves in phloem tissue is sucrose.